Celebrating Pi Day Mar 14, 2026

Celebrating Pi Day

Long before pi had a name, people were drawn to its mystery. Every year on March 14, Pi Day highlights one of math"s most recognisable constants. The date reflects the first three digits of pi (π), the ratio of a circle"s circumference to its diameter: 3.14. Pi"s infinite, nonrepeating decimal has fascinated thinkers for a long time. The modern celebration began in 1988, when physicist Larry Shaw marked the day with a fitting tribute: serving pie.

© Helen Hotson/Alamy

palette

Today in History

A beautiful labyrinth
Mar 14, 2024Ayutthaya Historical Park, Thailand
Mar 14, 2025Lathmar Holi

More Desktop Wallpapers:

A symbol of peace
Dare to tread through the fairy flower?
Dec 10, 2024Lands End, Cornwall, England
Aug 24, 2024Katahdin Woods and Waters National Monument, United States
Aug 31, 2025Scotts Bluff National Monument, Nebraska, United States
Jan 21, 2024Eurasian red squirrel
Aug 28, 2025Great white egret, Hungary
Incan ingenuity
Mar 1, 2025Sandstone hoodoos, Bryce Canyon National Park, Utah, United States
The Riviera of India
Apr 13, 2026International Dark Sky Week
Red rock country
Dec 18, 2024English National Ballet performing The Nutcracker
May 8, 2026World Donkey Day
Apr 7, 2025North American beaver, Moran, Wyoming, United States
Mar 25, 2026Juvenile manatees, Crystal River, Florida, United States
A bridge that holds up history
Jul 18, 2025Turquoise waters of the Bahamas
Mar 28, 2024Cherry blossoms in Shanghai, China
What are these unique creatures?
Sep 22, 2024Bada Bagh complex in Jaisalmer, Rajasthan
Blurring the lines with wearable art
Aug 9, 2024Hang Sơn Đoòng, Phong Nha-Kẻ Bàng National Park, Vietnam
Where is this historic hotel?
Have a merry little Christmas
Aug 16, 2025Colourful beehives, Italy
May 4, 2026Star Wars Day
May 11, 2024An indigo on a branch, Texas, USA
Jul 10, 2025Guru Purnima
Oct 3, 2025Glen Brittle, Isle of Skye, Scotland